Of course, because they spend most of their time in gambling and they are very ambitious.
Well, professional gamblers does not have to win all the time, they just need to win most of the time so they can be profitable.
I admire those sports bettor who are really good, I've known someone, an online sports betting, and he advise me to have a decent bankroll if I want to be successful as that's the only way we can seriously take what we are doing.
Typical gamblers usually does not have a decent bankroll, and they don't manage it well, professionals are different, they have their own and that bankroll in intended for long term purposes or up to a specific period.
In my opinion, not everything should be done because we consider everything in life a risk. Of what use is it to lose everything you ever owned because you are trying to get back money that isn’t guaranteed, that’s foolishness to me. I would also add by saying, there’s no kind of strategy that makes anyone win, that’s another big deceit.
If you played for years professionally without losing and also getting addicted, I think you should be grateful, because you were only lucky and it’s not by your efforts. This is the reason no one should be encouraged to become a professional gambler. You can play for fun and still make money occasionally.